* {
  box-sizing: border-box;
}

body {
  padding: 0;
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
}

.nav {
  position: fixed;
  width: 100%;
  height: 80px;
  background-color: black;
  transition: all 0.7s ease;
  color: white;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.home {
  margin-left: 30px;
  font-size: 27px;
}

ul {
  list-style: none;
  display: flex;
  margin-right: 50px;
}

li {
  margin-right: 15px;
  font-size: 21px;
}

li:first-child {
  color: red;
}

.main {
  width: 100%;
  height: 100vh;
  background: url("pc1.jpeg");
  background-size: cover;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

h1 {
  font-size: 62px;
  color: white;
}

p {
  font-size: 32px;
  color: white;
}

.footer {
  padding: 0 80px;
  margin-top: 40px;
}

.title {
  margin-bottom: 20px;
  font-size: 35px;
}

.content {
  font-size: 22px;
  color: #666;
  margin-bottom: 30px;
  line-height: 40px;
}
